Home / 3,145.37-4,717.98-1,687.37

Finding the Fourth Proportional to 3,145.37, 4,717.98 and 1,687.37

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Solution

The fourth proportional to 3,145.37, 4,717.98 and 1,687.37 is: 2,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.37 : 4,717.98 = 1,687.37 : x
  2. Step 2: Convert to fraction form
    3,145.37/4,717.98 = 1,687.37/x
  3. Step 3: Cross multiply
    3,145.37x = 4,717.98 × 1,687.37
  4. Step 4: Simplify right side
    3,145.37x = 7,960,954.32
  5. Step 5: Solve for x
    x = 7,960,954.32/3,145.37
  6. Step 6: Final answer
    x = 2,531.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.